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Finding the Fourth Proportional to 630,883.93, 870,623.36 and 358,951.82

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Solution

The fourth proportional to 630,883.93, 870,623.36 and 358,951.82 is: 495,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,883.93 : 870,623.36 = 358,951.82 : x
  2. Step 2: Convert to fraction form
    630,883.93/870,623.36 = 358,951.82/x
  3. Step 3: Cross multiply
    630,883.93x = 870,623.36 × 358,951.82
  4. Step 4: Simplify right side
    630,883.93x = 312,511,833,458.64
  5. Step 5: Solve for x
    x = 312,511,833,458.64/630,883.93
  6. Step 6: Final answer
    x = 495,355.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.